Surprisingly Shown in a Theater in "The Watsons Go to Birmingham"

One thing that surprised me in The Watsons Go to Birmingham was the showing of To Kill a Mockingbird in a Birmingham theater. For one thing, this would be around August of 1963, and To Kill a Mockingbird was released on February 14 of that year, so the theater was getting it a little late, but possibly the film was delayed or repeated as theaters sometimes do. The other surprising thing is that Mary Badham, who played Scout, was herself from Birmingham and was not welcome in many local homes after appearing in the movie, which was extremely controversial. The book still gets banned a lot. It just seems surprising that a Birmingham theater would show this when there were marches, protests, arrests, and bombings going on all over the place. Can anyone confirm whether this could have happened in real life or was it invented for the movie (and possibly the book on which the movie is based)? Thanks.